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Re: iana mime types as rdfs:Datatype ?

From: Ivan Herman <ivan@w3.org>
Date: Fri, 23 Jun 2006 14:04:26 +0200
Message-ID: <449BD8CA.6070403@w3.org>
To: Henry Story <henry.story@bblfish.net>
Cc: Semantic Web <semantic-web@w3.org>, atom-owl@googlegroups.com


Henry Story wrote:
> 
> Every iana mime type has an associated url. So for example text/html 
> is  http://www.iana.org/assignments/media-types/text/html
> 
> Now these urls seem to be exactly what is needed for developing new 
> Datatypes. In AtomOwl [1] for example we would like to be able to 
> specify be able to translate the following atom xml
> 
> 
> [] :content [ a :Content;
>               :type "text/html";
>               :value "<b>hello</b>" ] .
> 
> 
> Now if every iana mime type had a url, as above, then I wonder if the 
> following options would be better?
> 
> [] :content [ a :Content;
>               :type ianatxt:html;
>               :value "<b>hello</b>" ] .
> 
> or even
> 
> [] :content [ a :Content;
>               :value "<b>hello</b>"^^ianatxt:html ] .
>

I see a practical issue with this example. If one uses an RDF/XML
encoding and turtle, then the parser will have a problem with your
example, unless 'value' is declared to be rdf:XMLLiteral, which is a
datatype itself.... The second option could probably work as:

[] :content [ a :Content;
              :type ianatxt:html;
              :value "<b>hello</b>"^^rdf:XMLLiteral ] .


Ivan



> 
> 
> 
> [1] https://sommer.dev.java.net/atom/
> 

-- 

Ivan Herman
W3C Semantic Web Activity Lead
C/o W3C Benelux Office at CWI, Kruislaan 413
1098SJ Amsterdam, The Netherlands
tel: +31-20-5924163; mobile: +31-641044153;
URL: http://www.w3.org/People/Ivan/

Received on Friday, 23 June 2006 12:04:16 UTC

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